* {
    margin: 0;
    padding: 0;
}

a {
    color: black;
    text-decoration: none;
}

li {
    list-style: none;
    float: left;

}
.all{
    width: 980px;
    height: 101px;
    margin: auto;

    position: relative;
}

img {
    
    display: block;
    width: 218px;
    height: 62px;
   margin-top: 20px;
   position: absolute;
   left: 0;
   top: 0px;
}

#nav {
    position: absolute;
    right: 0;
    top: 0;
    width: 739px;
    height: 100px;
    text-align: center;
    line-height: 100px;
}

#nav .nLi {

    position: relative;
}


h3 a {
    display: block;
    padding: 0 15px;
    font-size: 15px;
    color: #777777;
    margin-right: 8px;
    font-weight: 500;
}

.sub li {
    float: none;
    line-height: 40px;
    text-align: left;
    padding-left: 20px;
}

.sub li a {
    color: white;
}

.sub {
    display: none;
    width: 160px;
    left: 0;
    top: 99px;
    position: absolute;
    background: #174fa4;
    line-height: 30px;
    padding: 20px 0;

}
.one {
    transition: all 1s ease;
    background-color: #174FA4;
}

.tow {
    color: white;
}